#include<bits/stdc++.h>
using namespace std;
int c,d,n,ans = 0;
char cc;
int pro,cost;
const int MAX = 2e5+7;
//Learnt this concept from no of strictly increasing subarrays...
//Didn't get this idea though myself...
 
vector<vector<int> > tree(2*MAX,vector<int>(2,0));
 
void update(int row,int idx,int val)
{
  //fuk one line update beech....
  for(;idx<=MAX;idx+=(idx&-idx)) tree[idx][row] = max(tree[idx][row],val);
}
 
int query(int row,int idx)
{
  int res = 0;
  for(;idx>0;idx-=(idx&-idx)) res = max(res,tree[idx][row]);
  return res;
}
 
int main(int argc, char const *argv[]) {
  ios_base::sync_with_stdio(false);
  cin.tie(0); cout.tie(0);
   cin>>n>>c>>d;
   //0 for coins and 1 for diamonds
   for(int i=1;i<=n;i++)
   {
     cin>>pro>>cost>>cc;
     if(cc=='C')
     {
       int m1 = query(1,d),m2=0;
       if(c-cost>=0) m2 = query(0,c-cost);
       if(max(m1,m2)>0) ans = max(ans,max(m1,m2)+pro);
       update(0,cost,pro);
     }else
     {
       int m1 = query(0,c),m2=0;
       if(d-cost>=0) m2 = query(1,d-cost);
       if(max(m1,m2)>0) ans = max(ans,max(m1,m2)+pro);
       update(1,cost,pro);
     }
   }
   std::cout <<ans<< '\n';
  return 0;
}
 

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MyAxMCAxMAo1IDUgQwo1IDUgQwoxMCAxMSBECg==

3 10 10
5 5 C
5 5 C
10 11 D